SOLUTION: hello! I forgot how to do these two equations can someone help step by step? https://docs.google.com/document/d/1MTDEdNJazocnHEmBvYzJDl-8yjM-Wpn74E0itR0N0JY/edit?usp=sharing

Algebra ->  Triangles -> SOLUTION: hello! I forgot how to do these two equations can someone help step by step? https://docs.google.com/document/d/1MTDEdNJazocnHEmBvYzJDl-8yjM-Wpn74E0itR0N0JY/edit?usp=sharing      Log On


   

Question 1112410: hello! I forgot how to do these two equations can someone help step by step?
https://docs.google.com/document/d/1MTDEdNJazocnHEmBvYzJDl-8yjM-Wpn74E0itR0N0JY/edit?usp=sharing
Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
.
I thought that those who knew it once, would never forgot it . . . 


The exterior angle = 180 degs - 160 degs = 20 degs.


The sum of all exterior angles = 360 degs  ====>  the number of sides/vertices = 360/20 = 18.

Answer. 18 sides.